31431225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 65710080

約数和(自身を除く): 34278855

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 25, 35, 57, 69, 75, 95, 105, 115, 133, 137, 161, 175, 285, 345, 399, 411, 437, 475, 483, 525, 575, 665, 685, 805, 959, 1311, 1425, 1725, 1995, 2055, 2185, 2415, 2603, 2877, 3059, 3151, 3325, 3425, 4025, 4795, 6555, 7809, 9177, 9453, 9975, 10275, 10925, 12075, 13015, 14385, 15295, 15755, 18221, 22057, 23975, 32775, 39045, 45885, 47265, 54663, 59869, 65075, 66171, 71925, 76475, 78775, 91105, 110285, 179607, 195225, 229425, 236325, 273315, 299345, 330855, 419083, 455525, 551425, 898035, 1257249, 1366575, 1496725, 1654275, 2095415, 4490175, 6286245, 10477075, 31431225]

約数ペア:

[(1, 31431225), (3, 10477075), (5, 6286245), (7, 4490175), (15, 2095415), (19, 1654275), (21, 1496725), (23, 1366575), (25, 1257249), (35, 898035), (57, 551425), (69, 455525), (75, 419083), (95, 330855), (105, 299345), (115, 273315), (133, 236325), (137, 229425), (161, 195225), (175, 179607), (285, 110285), (345, 91105), (399, 78775), (411, 76475), (437, 71925), (475, 66171), (483, 65075), (525, 59869), (575, 54663), (665, 47265), (685, 45885), (805, 39045), (959, 32775), (1311, 23975), (1425, 22057), (1725, 18221), (1995, 15755), (2055, 15295), (2185, 14385), (2415, 13015), (2603, 12075), (2877, 10925), (3059, 10275), (3151, 9975), (3325, 9453), (3425, 9177), (4025, 7809), (4795, 6555)]